SiePortal

The integrated platform for your product selection, buying and support workflow - bringing together Industry Mall and Online Support.

Products & Services
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
MySiePortal MySiePortal
{{(apiData.MySiePortal | filter:{'rank':1}:true)[0].title}} MySiePortal
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Cart ({{apiData.CartCount}})

Navigation

I want to control same DO module of ET200SP using two CPUs.

2/13/2025 2:22 AM	Rate (0)
TJKIM81 Joined: 12/8/2022 Last visit: 3/7/2025 Posts: 5 Rating: (0)	The DO module was shared as a SHARED DEVICE using two S7-1200 PLCs and one ET200SP. The DO module is assigned to PLC_1 and is being controlled without any problems. If PLC_1 breaks down, I want to control DO MODULE from PLC_2. Is there a way to control DO MODULE from PLC_2? The redundant module cannot be used due to price issues. Thank you. Attachment shared_device_check.jpg (161 Downloads)
	Last edited by: TJKIM81 at: 02/13/2025 08:24:22 Last edited by: TJKIM81 at: 02/13/2025 08:25:09
Suggestion To thank Quote Answer

2/25/2025 12:03 PM	Rate (0)
Murof Platinum Member Joined: 8/3/2009 Last visit: 9/12/2025 Posts: 16409 Rating: (1935)	Hello TJKIM81 Here are some general information to this topic, perhaps it helps: https://support.industry.siemens.com/cs/ww/en/view/109741600 Bye Murof
	If this Information really helps, you could use the Rate function
Suggestion To thank Quote Answer